Soldato
3440 x 1440.
Look at any review and there isn't much difference between them. Measurable YES.
Will you 'feel it' - No
Then you can turn on DLSS 2.0 or try some ray tracing
I think you have the right card and have either £400/£750 left in your bank account for next series gfx card, or a PS5, or a good chunk towards an OLED. Maybe buy the Missus summat.
Or send it to me!